TidePlanet

Weather in Collinsville

14-day forecast · updated today, Thursday, October 29, at 1:24 am (PDT)
Now · overcast 53 °F
Feels like
50 °F
Low / high
49 / 69 °F
Rain
2%
Wind
2 mph NNW
→ 29.93 inHg · steady

Today in Collinsville: overcast, 49 °F to 69 °F, with a 2% chance of rain and a light air from the north-northwest (2 mph). Tomorrow, overcast, 53 °F to 68 °F and a 3% chance of rain. The warmest day of the week is Thursday 29, at 69 °F. Next likely rain: Tuesday 3 (15%).

Temperatures for the next 14 days

Day by day

Day Sky Low / high Rain Max wind High tides Model
Today · 29 Overcast 49 / 69 °F 2% 6 mph SW 6:58 am · 5:05 pm HRRR + NBM
Fri 30 Overcast 53 / 68 °F 3% 9 mph WSW 8:02 am · 6:00 pm NBM
Sat 31 Light drizzle 52 / 64 °F 11% 6 mph WSW 9:05 am · 7:06 pm NBM
Sun 1 Partly cloudy 50 / 67 °F 7% 14 mph NW 9:05 am · 7:30 pm NBM
Mon 2 Overcast 49 / 66 °F 2% 6 mph N 10:00 am · 9:07 pm NBM
Tue 3 Overcast 51 / 67 °F 15% · 0.07 in 6 mph N 10:49 am · 10:30 pm NBM
Wed 4 Light drizzle 51 / 67 °F 13% · 0.02 in 7 mph W 11:32 am · 11:38 pm NBM
Thu 5 Drizzle 51 / 67 °F 6% 6 mph WSW 12:11 pm NBM
Fri 6 Drizzle 53 / 66 °F 9% 8 mph W 12:37 am · 12:45 pm NBM
Sat 7 Partly cloudy 53 / 65 °F 6% 7 mph WNW 1:32 am · 1:14 pm NBM
Sun 8 Light drizzle 53 / 66 °F 9% · 0.01 in 9 mph WNW 2:24 am · 1:38 pm NBM + ECMWF
Mon 9 Light drizzle 57 / 66 °F 4% · 0.11 in 3 mph SSE 3:16 am · 2:00 pm ECMWF
Tue 10 Light drizzle 56 / 66 °F 17% · 0.00 in 7 mph SSE 4:08 am · 2:23 pm ECMWF
Wed 11 Light rain 60 / 66 °F 29% · 0.44 in 11 mph SSE 4:59 am · 2:52 pm ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 8:00 pm; then NBM until Sunday 8 5:00 pm; then ECMWF until Thursday 12 7:00 pm; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky OvercastOvercastOvercastOvercastOvercastOvercastOvercastPartly cloudy
Temperature 53°52°51°54°65°68°64°59°
Chance of rain 0%0%0%0%1%1%1%2%
Rain 0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
Wind (mph) 2 WNW4 NNW4 ESE3 E1 SSE6 SSW5 SW2 WSW
Humidity 70%67%72%66%44%35%50%65%
UV 00003200
Model HRRRHRRRHRRRHRRRHRRRHRRRHRRRNBM

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain on Saturday 31: take it with some caution.

What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.

Do the models agree? · High
High (°F) TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF 69°70°69°68°72°71°68°
AIFS 68°69°64°67°68°68°68°
GFS 68°70°64°64°65°69°70°
ICON 65°68°58°65°67°65°67°
HRRR 69°——————
NBM 67°68°64°67°66°67°67°
Confidence highhighhighhighhighhighhigh
Do the models agree? · Rain
Rain TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF 000.01 in0000.07 in
AIFS 000.07 in0.02 in000
GFS 00.02 in0.07 in0.07 in000
ICON 000.13 in0000
HRRR 0——————
NBM 000000.07 in0.02 in
Confidence highhighmediumhighhighhighhigh
Do the models agree? · Wind
Wind (mph) TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF 6146156157216143141126
AIFS 3657637
GFS 541111991112811661310
ICON 4751059101861137712
HRRR 613——————
NBM 579136111424611611711
Confidence highhighhighhighhighhighhigh

Chance of rain from the ensemble models

Model TodayFri 30Sat 31Sun 1Mon 2Tue 3Wed 4
ECMWF (51 scenarios) 0%6%14%22%0%6%9%
GFS (GEFS, 31 scenarios) 0%6%23%27%0%6%4%
NBM (NOAA) 2%3%11%7%2%15%13%
Thunderstorm (NBM) 0%0%3%3%0%0%1%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: a bit warmer and a bit wetter.

Next 6 weeks

When TemperatureTemp. Rain Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8 Normal +0.7 °F Normal —
Nov 9 – Nov 15Nov 9–Nov 15 A bit above +2.5 °F Well above +110% —
Nov 16 – Nov 22Nov 16–Nov 22 A bit above +1.1 °F Above +57% 63° / 47°
Nov 23 – Nov 29Nov 23–Nov 29 A bit above +1.3 °F Normal 61° / 46°
Nov 30 – Dec 6Nov 30–Dec 6 A bit above +0.9 °F Normal 58° / 43°

Coming months

When TemperatureTemp. Rain
November A bit above +2.5 °F A bit above +49%
December Above +2.7 °F A bit above +33%
January Above +2.7 °F Well above +119%
February A bit above +1.3 °F Above +83%
March A bit above +1.4 °F Above +90%

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.

Collinsville climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Collinsville is from May to September: highs of 77 °F to 87 °F, barely 1 rainy day a month and 11 hours of sunshine a day.

Month High Low Rain Rainy daysDays Sun (h/day) Water Waves
JanuaryJan 55° 40° 3.60 in 8 2.8 53° 5.5 ft
FebruaryFeb 61° 42° 3.20 in 8 4.2 53° 5.4 ft
MarchMar 66° 45° 1.98 in 7 7.0 54° 5.1 ft
AprilApr 71° 47° 1.02 in 4 8.2 53° 5.1 ft
MayMay 77° 51° 0.49 in 2 9.5 53° 4.6 ft
JuneJun 84° 55° 0.17 in 1 11.7 54° 4.5 ft
JulyJul 87° 56° 0.02 in 0 11.9 56° 3.9 ft
AugustAug 87° 56° 0.04 in 0 10.9 58° 3.4 ft
SeptemberSep 85° 54° 0.06 in 0 9.8 58° 3.8 ft
OctoberOct 78° 50° 0.96 in 2 7.6 57° 4.2 ft
NovemberNov 65° 44° 1.76 in 5 5.5 55° 4.7 ft
DecemberDec 56° 40° 3.05 in 8 2.9 54° 5.4 ft
Month Water Waves
Jan 53° 5.5 ft
Feb 53° 5.4 ft
Mar 54° 5.1 ft
Apr 53° 5.1 ft
May 53° 4.6 ft
Jun 54° 4.5 ft
Jul 56° 3.9 ft
Aug 58° 3.4 ft
Sep 58° 3.8 ft
Oct 57° 4.2 ft
Nov 55° 4.7 ft
Dec 54° 5.4 ft

Days: rainy days in the month. Sun: hours a day.

A normal year brings 16.36 in of rain on about 46 days and about 2,800 hours of sunshine.

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now53 °Ffeels like 50 °F
Tomorrow53 / 68 °F

It's 53 °F now (feels like 50 °F). Today, 49 °F to 69 °F; tomorrow, 53 °F to 68 °F.

Chance of rain

  • Today 2%
  • Fri 30 3%
  • Sat 31 11%
  • Sun 1 7%
  • Mon 2 2%
  • Tue 3 15% 0.07 in
  • Wed 4 13% 0.02 in

Today the chance of rain reaches 2%. The next day with likely rain is Tuesday 3: 15% and 0.07 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.00 in; last 7 days, 0.74 in.

Humidity and dew point

Humidity65%
Dew point41 °F

Humidity is 65% now and the dew point is 41 °F.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now16 migood
Clouds100%

Visibility is good now (16 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0
Today's peak3moderate

Fri 30: 4 · Sat 31: 2 · Sun 1: 4

IndexLevelWhat to do
0–2lowNo special protection needed.
3–5moderateHat, sunglasses and sunscreen around midday.
6–7highSunscreen, hat and shade between 12 and 4 pm.
8–10very highAvoid the midday sun; reflection off the water adds to it.
11+extremeAvoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

  • ↗ Rising Anglers say fish bite less for a while
  • → Steady · now Anglers expect normal activity
  • ↘ Falling Anglers say fish feed more before the change

Steady now (−0.01 inHg in 3 hours). It barely changes over the next 48 hours. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityModerate · 68
Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

DaySkyLow / highRainMax wind
Wed 28 Overcast50 / 70 °F05 mph WNW
Tue 27 Overcast48 / 69 °F05 mph WSW
Mon 26 Partly cloudy52 / 70 °F010 mph WSW
Sun 25 Overcast52 / 72 °F05 mph NW
Sat 24 Clear sky53 / 72 °F07 mph NNW
Fri 23 Light drizzle56 / 70 °F0.04 in9 mph NW
Thu 22 Light rain57 / 62 °F0.78 in4 mph SSE
Show all 30 days
DaySkyLow / highRainMax wind
Wed 21 Light drizzle58 / 71 °F0.05 in7 mph NNW
Tue 20 Overcast53 / 71 °F05 mph NW
Mon 19 Overcast55 / 70 °F09 mph WSW
Sun 18 Clear sky57 / 83 °F09 mph W
Sat 17 Clear sky61 / 89 °F03 mph NNW
Fri 16 Clear sky62 / 88 °F04 mph WNW
Thu 15 Clear sky56 / 85 °F04 mph WNW
Wed 14 Clear sky53 / 80 °F05 mph W
Tue 13 Clear sky54 / 77 °F09 mph NW
Mon 12 Clear sky53 / 72 °F07 mph WNW
Sun 11 Clear sky52 / 74 °F08 mph WSW
Sat 10 Mainly clear56 / 73 °F011 mph SW
Fri 9 Mainly clear64 / 85 °F011 mph W
Thu 8 Clear sky66 / 97 °F08 mph W
Wed 7 Clear sky69 / 97 °F09 mph WNW
Tue 6 Clear sky68 / 98 °F08 mph W
Mon 5 Clear sky70 / 99 °F09 mph W
Sun 4 Partly cloudy72 / 98 °F05 mph WNW
Sat 3 Partly cloudy68 / 98 °F04 mph WNW
Fri 2 Overcast63 / 92 °F06 mph WNW
Thu 1 Overcast61 / 92 °F07 mph WNW
Wed 30 Clear sky62 / 93 °F06 mph WNW
Tue 29 Clear sky62 / 94 °F010 mph WNW

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in CollinsvilleQuestions

What's the weather like today in Collinsville?

Overcast, from 49 °F to 69 °F, with a light air from the north-northwest (2 mph) and a 2% chance of rain.

Will it rain tomorrow in Collinsville?

On Friday 30 the chance of rain is 3% (0.00 in): overcast.

How warm will it be this week?

Between a low of 49 °F and a high of 69 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 3 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 29.93 inHg and steady: −0.08 inHg over the last 24 hours.

When is the best time to visit Collinsville?

The best time to visit Collinsville is from May to September: highs of 77 °F to 87 °F, barely 1 rainy day a month and 11 hours of sunshine a day.

What is the weather like in Collinsville in October?

In October, Collinsville normally sees highs of 78 °F and lows of 50 °F, with about 2 rainy days (0.96 in for the month) and 8 hours of sunshine a day. The sea is around 57 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Collinsville?

The warmest is August, with average highs of 87 °F, and the coldest December, with lows of 40 °F. The wettest is January (3.60 in) and the driest, July.

More about Collinsville today

Weather near Collinsville

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 7.6 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 1:24 am (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from

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