Observed 10:05 PM EDT at KLAN

Mason, MI weather

Clear and 54°12°, 9°5° warmer than a typical Oct 24.

Forecasts agree

Now 54°12°

Clear

Wind: 7 mph11 km/h; From the south-southeast. Up to 7 mph11 km/h through 10 AM
Dew point: 46°8°; Comfortable
UV tomorrow: 3Moderate; Moderate 12–4 PM · peak 3
Air quality: 81Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.43 inHg1030 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° warmer than this time yesterday (48°9° then, 51°11° now)

Good hours for

Fog tonight 5–8 AM
Low 42°6° tonight at 5 AM
Above 60°16° tomorrow by noon
High 69°21° tomorrow at 3 PM
Below 60°16° tomorrow night after 8 PM

TonightDown to 42°6° by 5 AM · Clear
Tomorrow morningUp to 59°15° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 69°21° by 3 PM · Mostly cloudy
Tomorrow nightDown to 46°8° by 5 AM · Mostly cloudy
Monday morningUp to 59°15° by 11 AM · Mostly cloudy
Monday afternoonNear 63°17° · Mostly cloudy
Monday nightDown to 51°11° by 9 PM · Mostly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 10p	Clear	49°9° (likely 49°9° to 51°11°)	49°9°	0%	2 mph3 km/h from SE, gusts 10 mph15 km/h	86%	13%	0
Sat 11p	Clear	48°9° (likely 48°9° to 50°10°)	47°8°	0%	3 mph5 km/h from SSE, gusts 11 mph18 km/h	89%	3%	0
Sun 12a	Clear	47°8° (likely 47°8° to 49°9°)	47°8°	0%	2 mph3 km/h from SSE, gusts 10 mph17 km/h	89%	8%	0
Sun 1a	Clear	45°7° (likely 45°7° to 48°9°)	45°7°	0%	2 mph3 km/h from SSE, gusts 10 mph16 km/h	96%	1%	0
Sun 2a	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	2 mph3 km/h from SSE, gusts 10 mph16 km/h	100%	35%	0
Sun 3a	Mostly clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 10 mph16 km/h	100%	23%	0
Sun 4a	Mostly clear	43°6° (likely 43°6° to 46°8°)	43°6°	0%	0 mph0 km/h, gusts 8 mph12 km/h	96%	22%	0
Sun 5a	Fog	42°6° (likely 42°6° to 46°8°)	42°6°	0%	0 mph0 km/h, gusts 8 mph12 km/h	100%	31%	0
Sun 6a	Fog	42°6° (likely 42°6° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 8 mph14 km/h	100%	30%	0
Sun 7a	Fog	42°6° (likely 42°6° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 9 mph14 km/h	100%	35%	0
Sun 8a	Cloudy	42°6° (likely 42°6° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 9 mph15 km/h	100%	70%	0
Sun 9a	Cloudy	45°7° (likely 44°7° to 47°8°)	44°7°	0%	3 mph5 km/h from S, gusts 9 mph15 km/h	96%	75%	0
Sun 10a	Partly sunny	53°12° (likely 51°11° to 53°12°)	53°12°	0%	5 mph8 km/h from SSW, gusts 10 mph17 km/h	77%	57%	1
Sun 11a	Cloudy	59°15° (likely 57°14° to 59°15°)	59°15°	0%	3 mph5 km/h from SSW, gusts 12 mph19 km/h	62%	70%	2
Sun 12p	Partly sunny	63°17° (likely 62°17° to 64°18°)	63°17°	0%	5 mph8 km/h from SSW, gusts 11 mph18 km/h	52%	77%	3
Sun 1p	Cloudy	66°19° (likely 65°18° to 67°19°)	66°19°	0%	6 mph10 km/h from SW, gusts 11 mph18 km/h	45%	82%	3
Sun 2p	Cloudy	68°20° (likely 67°19° to 69°21°)	68°20°	0%	6 mph10 km/h from SW, gusts 12 mph19 km/h	42%	82%	3
Sun 3p	Cloudy	69°21° (likely 67°19° to 69°21°)	69°21°	0%	5 mph8 km/h from SSW, gusts 11 mph17 km/h	39%	80%	3
Sun 4p	Cloudy	69°21° (likely 67°19° to 69°21°)	69°21°	0%	5 mph8 km/h from SW, gusts 12 mph20 km/h	39%	74%	2
Sun 5p	Cloudy	68°20° (likely 66°19° to 68°20°)	68°20°	0%	5 mph8 km/h from SW, gusts 12 mph19 km/h	40%	64%	2
Sun 6p	Partly sunny	67°19° (likely 63°17° to 67°19°)	67°19°	0%	0 mph0 km/h, gusts 11 mph17 km/h	43%	54%	1
Sun 7p	Partly cloudy	63°17° (likely 59°15° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 8 mph13 km/h	52%	25%	0
Sun 8p	Partly cloudy	56°13° (likely 55°13° to 57°14°)	56°13°	0%	0 mph0 km/h, gusts 8 mph13 km/h	66%	33%	0
Sun 9p	Partly cloudy	54°12° (likely 53°12° to 55°13°)	54°12°	0%	0 mph0 km/h, gusts 9 mph14 km/h	71%	32%	0
Sun 10p	Clear	52°11° (likely 51°11° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 10 mph16 km/h	77%	36%	0
Sun 11p	Cloudy	51°11° (likely 50°10° to 52°11°)	51°11°	0%	0 mph0 km/h, gusts 11 mph17 km/h	77%	62%	0
Mon 12a	Cloudy	50°10° (likely 49°9° to 52°11°)	50°10°	0%	0 mph0 km/h, gusts 10 mph16 km/h	80%	79%	0
Mon 1a	Cloudy	50°10° (likely 48°9° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 10 mph16 km/h	80%	74%	0
Mon 2a	Cloudy	49°9° (likely 48°9° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 10 mph15 km/h	80%	83%	0
Mon 3a	Cloudy	47°8° (likely 47°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 9 mph15 km/h	86%	88%	0
Mon 4a	Cloudy	47°8° (likely 46°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 8 mph13 km/h	83%	85%	0
Mon 5a	Partly cloudy	46°8° (likely 46°8° to 49°9°)	46°8°	0%	0 mph0 km/h, gusts 8 mph12 km/h	89%	79%	0
Mon 6a	Mostly clear	46°8° (likely 45°7° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 5 mph7 km/h	89%	74%	0
Mon 7a	Partly cloudy	46°8° (likely 45°7° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	72%	0
Mon 8a	Mostly cloudy	45°7° (likely 44°7° to 48°9°)	45°7°	0%	0 mph0 km/h, gusts 5 mph8 km/h	93%	71%	0
Mon 9a	Mostly sunny	47°8° (likely 46°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 11 mph18 km/h	96%	73%	0
Mon 10a	Mostly sunny	53°12° (likely 50°10° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 11 mph18 km/h	80%	77%	1
Mon 11a	Partly sunny	59°15° (likely 53°12° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 15 mph23 km/h	64%	73%	2
Mon 12p	Partly sunny	62°17° (likely 53°12° to 62°17°)	62°17°	0%	1 mph2 km/h from N, gusts 13 mph21 km/h	58%	73%	3
Mon 1p	Partly sunny	64°18° (likely 56°13° to 64°18°)	64°18°	0%	3 mph5 km/h from N, gusts 12 mph19 km/h	52%	75%	3
Mon 2p	Cloudy	65°18° (likely 55°13° to 65°18°)	65°18°	0%	5 mph8 km/h from N, gusts 11 mph18 km/h	48%	70%	4
Mon 3p	Cloudy	65°18° (likely 56°13° to 65°18°)	65°18°	0%	5 mph8 km/h from N, gusts 11 mph18 km/h	46%	79%	3
Mon 4p	Cloudy	65°18° (likely 57°14° to 65°18°)	65°18°	0%	5 mph8 km/h from NNE, gusts 11 mph18 km/h	45%	87%	2
Mon 5p	Cloudy	63°17° (likely 56°13° to 63°17°)	63°17°	0%	5 mph8 km/h from NNE, gusts 12 mph19 km/h	46%	86%	1
Mon 6p	Cloudy	60°16° (likely 54°12° to 60°16°)	60°16°	0%	5 mph8 km/h from NNE, gusts 12 mph20 km/h	51%	80%	1
Mon 7p	Cloudy	57°14° (likely 52°11° to 57°14°)	57°14°	0%	6 mph10 km/h from NE, gusts 13 mph21 km/h	55%	83%	0
Mon 8p	Cloudy	53°12° (likely 51°11° to 54°12°)	53°12°	0%	6 mph10 km/h from NE, gusts 14 mph22 km/h	64%	87%	0
Mon 9p	Cloudy	51°11° (likely 49°9° to 53°12°)	51°11°	0%	6 mph10 km/h from NE, gusts 13 mph20 km/h	66%	83%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Fog. High 66°19°, low 42°6°. Typical 57°14° / 37°3°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
2. Overnight
  midnight–6 AM
  Mostly clear, 42°6°
  Dry
Official NWS forecast
Tonight: Patchy fog after 1am. Mostly clear, with a low around 42. South southeast wind 0 to 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–67°19°
Low, likely
40°4°–42°6°
Typical high / low
57°14° / 37°3°
Wind
8 mph12 km/h, gusts 15 mph24 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 69°21°, low 45°7°. Typical 56°13° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 46°8°
  Dry
Official NWS forecast
Day: Patchy fog before 9am. Mostly sunny, with a high near 69. South southwest wind 0 to 6 mph.
Night: Partly cloudy, with a low around 45. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–69°21°
Low, likely
42°6°–45°7°
Typical high / low
56°13° / 37°3°
Wind
8 mph13 km/h, gusts 16 mph26 km/h
UV peak
3
Monday, Oct 26. Partly sunny. High 65°18°, low 41°5°. Typical 56°13° / 36°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 46°8°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 65. North northwest wind 0 to 5 mph.
Night: Mostly cloudy, with a low around 41. Northeast wind around 6 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
58°14°–65°18°
Low, likely
41°5°–47°8°
Typical high / low
56°13° / 36°2°
Wind
12 mph20 km/h, gusts 20 mph32 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 61°16°, low 45°7°. Typical 55°13° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 60°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 61.
Night: Mostly cloudy, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–61°16°
Low, likely
43°6°–47°8°
Typical high / low
55°13° / 36°2°
Wind
10 mph16 km/h, gusts 22 mph36 km/h
UV peak
3
Wednesday, Oct 28. Cloudy. High 70°21°, low 52°11°. Typical 55°13° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 70.
Night: Partly cloudy, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–71°22°
Low, likely
48°9°–52°11°
Typical high / low
55°13° / 36°2°
Wind
12 mph19 km/h, gusts 23 mph37 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 72°22°, low 48°9°. Typical 54°12° / 35°2°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Partly sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 2pm. Mostly sunny, with a high near 72.
Night: A slight chance of rain showers before 2am. Partly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 72°22°).
High, likely
69°21°–73°23°
Low, likely
48°9°–55°13°
Typical high / low
54°12° / 35°2°
Wind
16 mph26 km/h, gusts 32 mph51 km/h
UV peak
3
Friday, Oct 30. Partly sunny. High 70°21°, low 50°10°. Typical 54°12° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 51°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 70.
Night: Partly cloudy, with a low around 50.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–74°23°
Low, likely
47°8°–53°12°
Typical high / low
54°12° / 35°2°
Wind
13 mph22 km/h, gusts 24 mph38 km/h
UV peak
2
Saturday, Oct 31. Mostly cloudy. High 70°21°, low 51°11°. Typical 53°12° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  30% chance
4. Overnight
  midnight–6 AM
  Drizzle, 58°14°
  50% chance · 0.06 in1.6 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 2pm. Partly sunny, with a high near 70.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–75°24°
Low, likely
44°7°–54°12°
Typical high / low
53°12° / 35°2°
Wind
14 mph23 km/h, gusts 34 mph54 km/h
UV peak
2
Sunday, Nov 1. Drizzle. High 67°19°, low 56°13°. Typical 53°12° / 34°1°. Rain 0.35 in8.9 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 57°14°
  40% chance · 0.15 in3.7 mm
2. Afternoon
  noon–6 PM
  Drizzle, 66°19°
  40% chance · 0.04 in1.1 mm
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  40% chance · 0.17 in4.3 mm
4. Overnight
  midnight–6 AM
  Cloudy, 56°14°
  30% chance · 0.08 in1.9 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–70°21°
Low, likely
50°10°–61°16°
Typical high / low
53°12° / 34°1°
Wind
22 mph35 km/h, gusts 41 mph66 km/h
UV peak
1
Monday, Nov 2. Cloudy. High 63°17°, low 50°10°. Typical 52°11° / 34°1°. Rain 0.28 in7.1 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 54°12°
  30% chance · 0.01 in0.3 mm
2. Afternoon
  noon–6 PM
  Sunny, 58°15°
  30% chance · 0.11 in2.9 mm
3. Evening
  6 PM–midnight
  Clear, 52°11°
  30% chance · 0.16 in4 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–66°19°
Low, likely
40°4°–55°13°
Typical high / low
52°11° / 34°1°
Wind
20 mph32 km/h, gusts 34 mph55 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 66°, low 42°.
Tomorrow
Dry, high 69°, low 45°, warming up.
Monday
Dry, high 65°, low 41°, cooling off.
Rest of week
Highs 61–72°; chance of precipitation on Sunday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (GRR) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Sycamore Creek near Holt

4.6 mi

Below flood stage

Level: 2.4 ft
Flow: 20 cfs

Reading from Sat 9 PM · NWS gauge page

Sloan Creek near Williamston

7.7 mi

Level: 1.5 ft
Flow: under 1 cfs

Reading from Sat 9:45 PM · NWS gauge page

Red Cedar River at East Lansing

10 mi

Below flood stage

Level: 3.4 ft
Flow: 72 cfs

Reading from Sat 8:30 PM · NWS gauge page

Red Cedar River near Williamston

13 mi

Below flood stage

Level: 2.5 ft
Flow: 38 cfs

Reading from Sat 9:15 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 83% less heating than a typical week.

This week 23Typical 136

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 17
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 4 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 46°F).

Open the windows?

Sun, 12:00 PM–7:00 PM

Good stretch to open the windows.

Is this typical?

Eaton Rapids · official normals 1991–2020 · records 1968–2026

Oct 24, today vs a typical year

Today’s expected high is 9°5° warmer than typical.

Last 7 days vs normal

On average 5°3° warmer than normal (daily mean temperature).

±0°MonOct 19
+4°+2°TueOct 20
+6°+3°WedOct 21
+5°+3°ThuOct 22
+7°+4°FriOct 23
+7°+4°SatOct 24
—SunOct 25

Mason weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 40 min; Losing 2 min 44 s a day; shortest Dec 21, 1 h 37 min less
Golden hour: 6:02–6:59 PM; Morning 7:44–8:40 AM
Blue hour: 6:59–7:10 PM; Morning 7:32–7:44 AM; first light 7:32 AM

Stars tonight? Fair

Mostly clear 10:40 PM–2 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 6:13 AM · rises 5:39 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Mason. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Mason, MI weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Sycamore Creek near Holt

Sloan Creek near Williamston

Red Cedar River at East Lansing

Red Cedar River near Williamston

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon